Home / 113,910.24-157,038-98,162.40

Finding the Fourth Proportional to 113,910.24, 157,038 and 98,162.40

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Solution

The fourth proportional to 113,910.24, 157,038 and 98,162.40 is: 135,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,910.24 : 157,038 = 98,162.40 : x
  2. Step 2: Convert to fraction form
    113,910.24/157,038 = 98,162.40/x
  3. Step 3: Cross multiply
    113,910.24x = 157,038 × 98,162.40
  4. Step 4: Simplify right side
    113,910.24x = 15,415,226,971.20
  5. Step 5: Solve for x
    x = 15,415,226,971.20/113,910.24
  6. Step 6: Final answer
    x = 135,327.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.